The Canadian global oil and gas production company, Talisman Energy, has seen its value slide over the past several years due to poor business planning. However, stocks of Talisman Energy grew over 10% Tuesday morning following this Tweet by Carl…

Billionaire activist investor Carl Icahn penned an open letter on Monday to Dell Inc. shareholders announcing the end of his battle with the company’s Board of Directors. Some reports indicate Icahn will leave the deal about $11 million richer and…

Billionaire Carl Icahn has taken a “large position in APPLE,” and has met with Tim Cook. Last night, he tweeted: We currently have a large position in APPLE. We believe the company to be extremely undervalued. Spoke to Tim Cook…

Once upon a time, Carl Icahn complained about the way Jerry Yang was running Yahoo and bought a massive number of shares to force him out. Later, Icahn joined Yahoo’s board of directors and gave Carol Bartz his full support. Now, Icahn’s involvement seems almost over, as he’s sold around 7.9 million shares.

For better or for worse, it looks like Carl Icahn has cut some ties to Yahoo. The activist investor, who once bought a great many shares as part of an effort to force out Jerry Yang and Yahoo’s board of directors, reduced his stake by about 80.2 percent during the last six months.

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